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Honeywell
Fault
Fault name
code
8
System fault
9
Undervoltage
Frequency converter
13
undertemperature
Frequency converter
14
overtemperature
15
Motor stalled
Motor overtempera-
16
ture
EEPROM checksum
22
fault
Microcontroller watch-
25
dog fault
Internal bus commu-
34
nication
Table 6.1 : Fault codes
62-0312—02
Fault Tracing
Possible cause
• component failure
• faulty operation
The DC-link voltage has
exceeded the internal safety
limit:
• most probable cause: too
low a supply voltage
• frequency converter internal
fault
• Power outages
IGBT switch temperature is
under 14 °F(-10 °C)
IGBT switch temperature is over
248 °F (120 °C). Overtempera-
ture warning is issued when the
IGBT switch temperature
exceeds 230 °F (110 °C).
Motor stall protection has tripped Check motor
Motor overheating has been
detected by frequency converter
motor temperature model. Motor
is overloaded
Parameter save fault
• faulty operation
• component failure
• faulty operation
• component failure
Ambient interference or defective
hardware
26
Correcting actions
Reset the fault and
restart.
Should the fault re-occur,
contact the distributor
near to you
In case of temporary sup-
ply voltage break reset
the fault and restart the
frequency converter.
Check the supply voltage.
If it is adequate, an inter-
nal failure has occurred.
Contact the distributor
near to you
Check the ambient tem-
perature
Check that the cooling air
flow is not blocked.
Check the ambient tem-
perature.
Make sure that the
switching frequency is not
too high in relation to
ambient temperature and
motor load.
Decrease the motor load.
If no motor overload
exists, check the temper-
ature model parameters.
Contact the distributor
near to you
Reset the fault and
restart.
Should the fault re-occur,
contact the distributor
near to you.
Should the fault re-occur,
contact the distributor
near to you.
6
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